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Full text of "Text Book Of Mechanical Engineering"

Appendix VI.
Hence the volume at temperature rx is :—





constant,     and   PV oc r

Pp. 600 and 9jo. The Mechanical Equivalent of
Heat.—The apparatus of Prof. H. A. Rowland of .Baltimore, for
the determination of this1 important value,-and already mentioned
at p. 930, is illustrated in Fig. 1000. The paddles are rotated by

power, through pulley L, shaft K, and multiplying gear M to the
shaft J. The fiied wings are held stationary by the box A, which
is connected to the shaft D by the plate B, and the torque is
naeastured by the weights GG, which are connected to opposite